3e934a0cf2a18474a0df20eb5adc1020dd39b54dd5a1e0486d05e9505604dc39

Analysis

max time kernel
148s
max time network
153s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
12/02/2024, 11:27

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General

Target

2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe
Size

51KB
MD5

206ed144330f1b071d8eb5120bda289e
SHA1

33392a4a07c929b1694df4db2195bb79b48b8baf
SHA256

3e934a0cf2a18474a0df20eb5adc1020dd39b54dd5a1e0486d05e9505604dc39
SHA512

a1ce7b52ef5301c976318412cc47466bcaedf64dc2144f4b506935ef89198e01215efa67ce79ddddf46a63c3d64bd018279c33dd9a0708007dd6f77996b4f432
SSDEEP

768:79inqyNR/QtOOtEvwDpjBK/rJ+Nw8qn8pKIR9O:79mqyNhQMOtEvwDpjBxe8TpXRw

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 4 IoCs

resource	yara_rule
behavioral1/memory/2436-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/files/0x000e000000012247-11.dat	CryptoLocker_rule2
behavioral1/memory/2436-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2
behavioral1/memory/2648-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_rule2

Detection of Cryptolocker Samples 4 IoCs

resource	yara_rule
behavioral1/memory/2436-0-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/files/0x000e000000012247-11.dat	CryptoLocker_set1
behavioral1/memory/2436-15-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1
behavioral1/memory/2648-17-0x0000000000500000-0x000000000050F000-memory.dmp	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2648	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2436	2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2436 wrote to memory of 2648	2436	2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe	28
PID 2436 wrote to memory of 2648	2436	2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe	28
PID 2436 wrote to memory of 2648	2436	2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe	28
PID 2436 wrote to memory of 2648	2436	2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-02-12_206ed144330f1b071d8eb5120bda289e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2436
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
51KB

MD5
336fac681a184347eafc637e84a69228

SHA1
9307baacef061afc31d050199a9b699fcf73e792

SHA256
66594d78d98db13ce267742b6f0dfec812c726d66de1edc7b1ec90a14e845dd3

SHA512
c52f2bb735743ceaa3264f65836ca74a09955f7ac1afbc898e119a72a07117cd161ef3d53e781d460dbc2c1830ddcd74c2fe0c9e73bc339ef9eaa053c8e977b7

Download Submit
memory/2436-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2436-1-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2436-2-0x0000000000390000-0x0000000000396000-memory.dmp

Filesize
24KB

Download
memory/2436-6-0x0000000000360000-0x0000000000366000-memory.dmp

Filesize
24KB

Download
memory/2436-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2648-17-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2648-19-0x00000000001D0000-0x00000000001D6000-memory.dmp

Filesize
24KB

Download
memory/2648-18-0x0000000000280000-0x0000000000286000-memory.dmp

Filesize
24KB

Download